ATE4045T1 - Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen. - Google Patents

Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.

Info

Publication number
ATE4045T1
ATE4045T1 AT80106093T AT80106093T ATE4045T1 AT E4045 T1 ATE4045 T1 AT E4045T1 AT 80106093 T AT80106093 T AT 80106093T AT 80106093 T AT80106093 T AT 80106093T AT E4045 T1 ATE4045 T1 AT E4045T1
Authority
AT
Austria
Prior art keywords
control
activated sludge
achieve higher
phosphorus removal
removal rates
Prior art date
Application number
AT80106093T
Other languages
English (en)
Inventor
Michael Shi-Kuan Chen
Eugene Joseph Greskovich
Marshall Louis Spector
Original Assignee
Air Products And Chemicals, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22176790&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE4045(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Air Products And Chemicals, Inc. filed Critical Air Products And Chemicals, Inc.
Application granted granted Critical
Publication of ATE4045T1 publication Critical patent/ATE4045T1/de

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1215—Combinations of activated sludge treatment with precipitation, flocculation, coagulation and separation of phosphates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/308—Biological phosphorus removal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/903—Nitrogenous
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/906—Phosphorus containing

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Activated Sludge Processes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Saccharide Compounds (AREA)
  • Jellies, Jams, And Syrups (AREA)
  • Fats And Perfumes (AREA)
  • Electric Clocks (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
AT80106093T 1979-10-09 1980-10-07 Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen. ATE4045T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/083,196 US4271026A (en) 1979-10-09 1979-10-09 Control of activated sludge wastewater treating process for enhanced phosphorous removal
EP19800106093 EP0026938B1 (de) 1979-10-09 1980-10-07 Kontrolle des Belebtschlammverfahrens, um höhere Phosphorentfernungsraten zu erreichen

Publications (1)

Publication Number Publication Date
ATE4045T1 true ATE4045T1 (de) 1983-07-15

Family

ID=22176790

Family Applications (1)

Application Number Title Priority Date Filing Date
AT80106093T ATE4045T1 (de) 1979-10-09 1980-10-07 Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.

Country Status (13)

Country Link
US (1) US4271026A (de)
EP (1) EP0026938B1 (de)
JP (1) JPS57113893A (de)
AT (1) ATE4045T1 (de)
AU (1) AU531468B2 (de)
CA (1) CA1143486A (de)
DE (1) DE3064050D1 (de)
DK (1) DK421580A (de)
ES (1) ES495736A0 (de)
FI (1) FI803148L (de)
GR (1) GR70762B (de)
IL (1) IL61159A (de)
ZA (1) ZA806238B (de)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4353800A (en) * 1980-08-25 1982-10-12 Ferdinand Besik Method and an apparatus for biological treatment of waste waters
JPS5839599B2 (ja) * 1981-04-13 1983-08-31 荏原インフイルコ株式会社 有機性廃液からのリン除去法
US4421648A (en) * 1981-06-01 1983-12-20 Ferdinand Besik Apparatus and a method for biological treatment of waste waters
US4731185A (en) * 1981-07-13 1988-03-15 Air Products And Chemicals, Inc. Biological wastewater treating system
JPS58139791A (ja) * 1982-02-12 1983-08-19 Ebara Infilco Co Ltd 有機性廃液の処理法
NL8201293A (nl) * 1982-03-29 1983-10-17 Gist Brocades Nv Fluid-bed reactor voor het zuiveren van afvalwater.
ATE22276T1 (de) * 1982-07-21 1986-10-15 Air Prod & Chem Verfahren fuer die biologische behandlung von abwasser.
US4488967A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Treatment of wastewater containing phosphorus compounds
US4488968A (en) * 1983-03-07 1984-12-18 Air Products And Chemicals, Inc. Removal of phosphates and BOD from wastewaters
GB2155003B (en) * 1984-01-20 1987-12-31 Nishihara Env San Res Co Ltd Activated sludge method
US4650585A (en) * 1984-04-17 1987-03-17 Air Products And Chemicals, Inc. Method for minimizing diurnal swing in phosphorus content of effluent streams from wastewater treating plants
US4552663A (en) * 1984-07-31 1985-11-12 Air Products And Chemicals, Inc. Process for the removal of ammoniacal nitrogen in the BOD sorption zone of a wastewater treatment plant
HU205330B (en) * 1986-05-19 1992-04-28 Tatabanyai Banyak Vallalat Process for purifying sewage containing organic material, by increased removal of phosphorus and nitrogen
DE3644770C1 (de) * 1986-12-30 1988-06-01 Linde Ag Verfahren zur Reinigung phosphathaltiger Abwaesser mittels biologischer Phosphorelimination sowie Anlage zur Durchfuehrung dieses Verfahrens
US4898672A (en) * 1987-09-14 1990-02-06 Clifft Ricky C Oxygen controlling wastewater treatment method
US4846965A (en) * 1987-09-14 1989-07-11 Clifft Ricky C Oxygen controlling wastewater treatment system
FR2621136A1 (de) * 1987-09-24 1989-03-31 Lyonnaise Eaux
US5013441A (en) * 1988-07-20 1991-05-07 Goronszy Mervyn C Biological nutrient removal with sludge bulking control in a batch activated sludge system
US4919815A (en) * 1989-02-06 1990-04-24 Zimpro/Passavant Inc. Two-stage anaerobic/aerobic treatment process
FR2667057B1 (fr) * 1990-09-25 1993-07-09 Degremont Reacteur perfectionne pour le traitement biologique des eaux residuaires.
IT1249625B (it) * 1991-06-10 1995-03-09 Enea Procedimento per il trattamento depurativo delle acque di scarico municipali, e impianto che utilizza il detto procedimento
US5182021A (en) * 1991-12-16 1993-01-26 Lehigh University Biological process for enhanced removal of ammonia, nitrite, nitrate, and phosphate from wastewater
US5288405A (en) * 1993-01-27 1994-02-22 Piedmont Olsen Hensley, Inc. Wastewater treatment with enhanced biological phosphorus removal and related purification processes
US5380438A (en) * 1993-08-17 1995-01-10 City Of Atlanta Treatment of wastewater through enhanced biological phosphorus removal
US5702499A (en) * 1994-01-18 1997-12-30 Sim Associates Waste conversion by liquid thermophilic aerobic digestion
CA2275146C (en) 1996-12-20 2006-10-31 Usf Filtration And Separations Group, Inc. Scouring method
US6096214A (en) * 1997-12-01 2000-08-01 Freese And Nichols, Inc. Process for applying alternating anaerobic contact processing for the treatment of wastewater
US6190554B1 (en) * 1998-03-04 2001-02-20 Mikkel G. Mandt Surge anoxic mix sequencing batch reactor systems
ATE407915T1 (de) * 1998-03-04 2008-09-15 Mikkel G Mandt Batch-reaktor mit anoxischer mischung
AU2003236421B2 (en) * 1998-03-04 2006-12-14 Mikkel G. Mandt Surge Anoxic Mix Sequencing Batch Reactor Systems
JP3601976B2 (ja) * 1998-06-16 2004-12-15 シャープ株式会社 排水処理方法および排水処理装置
US8518704B2 (en) * 1999-08-03 2013-08-27 Advanced Micro Devices, Inc. System and method for monitoring and/or controlling attributes of multiple chemical mixtures with a single sensor
US6592757B2 (en) * 2000-02-01 2003-07-15 O'brien & Gere Engineers, Inc. Selector contact stabilization process and apparatus for wastewater treatment
US6565750B2 (en) 2000-08-31 2003-05-20 O'brien & Gere Engineers, Inc. Trickling filter system for biological nutrient removal
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
US6712970B1 (en) * 2002-01-11 2004-03-30 Enviroquip, Inc. Sewage treatment process with phosphorus removal
US7247238B2 (en) 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
US6872313B1 (en) * 2002-09-23 2005-03-29 Agrimond Usa Corporation Domestic wastewater treatment system
CA2501628C (en) 2002-10-10 2012-12-04 U.S. Filter Wastewater Group, Inc. A filtration and backwashing arrangement for membrane modules
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
CA2535360C (en) * 2003-08-29 2013-02-12 U.S. Filter Wastewater Group, Inc. Backwash
AU2004289373B2 (en) * 2003-11-14 2010-07-29 Evoqua Water Technologies Llc Improved module cleaning method
US8758621B2 (en) * 2004-03-26 2014-06-24 Evoqua Water Technologies Llc Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
JP2007535398A (ja) * 2004-04-22 2007-12-06 シーメンス ウォーター テクノロジース コーポレイション 有機物質を消化するためのメンブレンバイオリアクタおよび処理槽を含む濾過装置ならびに廃液処理方法
NZ588094A (en) 2004-08-20 2012-04-27 Siemens Water Tech Corp Potting head for hollow fibre filter module
JP4838248B2 (ja) 2004-09-07 2011-12-14 シーメンス・ウォーター・テクノロジーズ・コーポレーション 逆洗液体廃棄物の低減
US8506806B2 (en) * 2004-09-14 2013-08-13 Siemens Industry, Inc. Methods and apparatus for removing solids from a membrane module
US8377305B2 (en) 2004-09-15 2013-02-19 Siemens Industry, Inc. Continuously variable aeration
US7172699B1 (en) 2004-10-13 2007-02-06 Eimco Water Technologies Llc Energy efficient wastewater treatment for nitrogen and phosphorus removal
US7591950B2 (en) 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
EP2394731A1 (de) * 2004-12-24 2011-12-14 Siemens Industry, Inc. Reinigung in Membranfiltrationssystemen
WO2006066350A1 (en) * 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
JP2008539054A (ja) 2005-04-29 2008-11-13 シーメンス・ウォーター・テクノロジーズ・コーポレイション 膜フィルターのための化学洗浄
US7344643B2 (en) * 2005-06-30 2008-03-18 Siemens Water Technologies Holding Corp. Process to enhance phosphorus removal for activated sludge wastewater treatment systems
MY146286A (en) 2005-08-22 2012-07-31 Siemens Industry Inc An assembly for water filtration using a tube manifold to minimise backwash
WO2007028149A2 (en) * 2005-09-02 2007-03-08 Siemens Water Technologies Corp. Screening of inert solids from a low-yield wastewater treatment process
WO2007044345A2 (en) 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
US7833415B2 (en) * 2005-10-26 2010-11-16 D.C. Water & Sewer Authority Method for treating raw sludge including a simultaneous or pulsed aerobic/anoxic digestion process
CN101321578B (zh) * 2005-12-09 2010-12-08 西门子水技术公司 减少反冲洗量的过程
US20090001018A1 (en) * 2006-01-12 2009-01-01 Fufang Zha Operating Strategies in Filtration Processes
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
WO2007103499A2 (en) * 2006-03-07 2007-09-13 Siemens Water Technologies Corp. Multivalent metal ion management for low sludge processes
US7569148B2 (en) 2006-08-23 2009-08-04 Siemens Water Technologies Corp. Continuous membrane filtration and solids reduction
US20090255873A1 (en) * 2006-08-31 2009-10-15 Bruce Gregory Biltoft Low pressure backwash
WO2008051546A2 (en) * 2006-10-24 2008-05-02 Siemens Water Technologies Corp. Infiltration/inflow control for membrane bioreactor
WO2008098309A1 (en) * 2007-02-16 2008-08-21 Siemens Water Technologies Corp. Membrane filtration process and design
CA2682707C (en) 2007-04-02 2014-07-15 Siemens Water Technologies Corp. Improved infiltration/inflow control for membrane bioreactor
KR20090128531A (ko) * 2007-04-04 2009-12-15 지멘스 워터 테크놀로지스 코포레이션 멤브레인 모듈 보호
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
KR20160045152A (ko) 2007-05-29 2016-04-26 에보쿠아 워터 테크놀로지스 엘엘씨 수처리 시스템
CA2686937A1 (en) * 2007-05-29 2008-12-04 Siemens Water Technologies Corp. Membrane cleaning using an airlift pump
US20100200503A1 (en) * 2007-06-28 2010-08-12 Fufang Zha Cleaning method for simple filtration systems
WO2009026352A1 (en) * 2007-08-20 2009-02-26 Jon Inman Sattler System and method for processing wastewater
KR20100136989A (ko) 2008-03-28 2010-12-29 지멘스 워터 테크놀로지스 코포레이션 호기성 및 혐기성 하이브리드 폐수 및 슬러지 처리 시스템 및 방법
US8894856B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Hybrid aerobic and anaerobic wastewater and sludge treatment systems and methods
US8894857B2 (en) 2008-03-28 2014-11-25 Evoqua Water Technologies Llc Methods and systems for treating wastewater
AU2009273775B2 (en) 2008-07-24 2014-11-20 Evoqua Water Technologies Llc Frame system for membrane filtration modules
US20110132826A1 (en) * 2008-08-14 2011-06-09 Siemens Water Technologies Corp. Block Configuration for Large Scale Membrane Distillation
NZ591259A (en) * 2008-08-20 2013-02-22 Siemens Industry Inc A hollow membrane filter backwash system using gas pressurised at at least two pressures feed from the down stream side to push water through the filter to clean it
JP4995215B2 (ja) * 2009-03-23 2012-08-08 前澤工業株式会社 汚水処理設備
JP2012528717A (ja) * 2009-06-02 2012-11-15 シーメンス インダストリー インコーポレイテッド パルス状の気体スラグおよび大域的曝気による膜洗浄
AU2010101488B4 (en) 2009-06-11 2013-05-02 Evoqua Water Technologies Llc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
WO2011068931A1 (en) * 2009-12-03 2011-06-09 Siemens Industry, Inc. Systems and methods for nutrient removal in biological treatment systems
AU2011245709B2 (en) 2010-04-30 2015-06-11 Evoqua Water Technologies Llc Fluid flow distribution device
US9359236B2 (en) 2010-08-18 2016-06-07 Evoqua Water Technologies Llc Enhanced biosorption of wastewater organics using dissolved air flotation with solids recycle
EP2606008A4 (de) 2010-08-18 2014-07-23 Evoqua Water Technologies Llc Hybridsystem zur stabilisierung durch kontakt und primärflotation
US9022224B2 (en) 2010-09-24 2015-05-05 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
US9908800B2 (en) * 2011-04-14 2018-03-06 Global Water Group, Incorporated System and method for wastewater treatment
SG11201401091SA (en) 2011-09-30 2014-04-28 Evoqua Water Technologies Llc Isolation valve
CN103958024B (zh) 2011-09-30 2016-07-06 伊沃夸水处理技术有限责任公司 改进的歧管排列
EP2866922B1 (de) 2012-06-28 2018-03-07 Evoqua Water Technologies LLC Eintopfungsverfahren
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
DE112013004713T5 (de) 2012-09-26 2015-07-23 Evoqua Water Technologies Llc Membransicherungsvorrichtung
AU2013323934A1 (en) 2012-09-27 2015-02-26 Evoqua Water Technologies Llc Gas scouring apparatus for immersed membranes
WO2014182533A1 (en) 2013-05-06 2014-11-13 Erdogan Argun O Wastewater biosorption with dissolved air flotation
AU2014329869B2 (en) 2013-10-02 2018-06-14 Evoqua Water Technologies Llc A method and device for repairing a membrane filtration module
CN107847869B (zh) 2015-07-14 2021-09-10 罗门哈斯电子材料新加坡私人有限公司 用于过滤系统的通气装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756946A (en) * 1972-06-13 1973-09-04 Biospherics Inc Sewage treatment process
US3730882A (en) * 1972-06-13 1973-05-01 Biospherics Inc Internal precipitation of phosphate in settling zone
SU784754A3 (ru) * 1975-06-04 1980-11-30 Юнион Карбид Корпорейшн (Фирма) Способ биохимической очистки сточных вод, содержащих фосфор
US4042493A (en) * 1975-10-28 1977-08-16 Union Carbide Corporation Phosphate removal from BOD-containing wastewater
US4162153A (en) * 1976-04-12 1979-07-24 Air Products And Chemicals, Inc. High nitrogen and phosphorous content biomass produced by treatment of a BOD-containing material
US4056465A (en) * 1976-04-12 1977-11-01 Air Products And Chemicals, Inc. Production of non-bulking activated sludge
DE2641750A1 (de) * 1976-09-16 1978-03-23 Vysoka Skola Chem Tech Verfahren zur reinigung von abwasser mit einem hohen gehalt an organischen stoffen
US4183808A (en) * 1977-11-23 1980-01-15 Union Carbide Corporation Phosphate removal from wastewater
US4173531A (en) * 1977-11-23 1979-11-06 Union Carbide Corporation Nitrification-denitrification of wastewater

Also Published As

Publication number Publication date
ES8107131A1 (es) 1981-09-16
DE3064050D1 (en) 1983-08-11
IL61159A0 (en) 1980-11-30
AU531468B2 (en) 1983-08-25
EP0026938A1 (de) 1981-04-15
DK421580A (da) 1981-04-10
JPS6312680B2 (de) 1988-03-22
US4271026A (en) 1981-06-02
EP0026938B1 (de) 1983-07-06
ES495736A0 (es) 1981-09-16
JPS57113893A (en) 1982-07-15
CA1143486A (en) 1983-03-22
FI803148L (fi) 1981-04-10
GR70762B (de) 1983-03-16
IL61159A (en) 1983-07-31
ZA806238B (en) 1981-09-30
AU6304880A (en) 1981-04-16

Similar Documents

Publication Publication Date Title
ATE4045T1 (de) Kontrolle des belebtschlammverfahrens, um hoehere phosphorentfernungsraten zu erreichen.
SE7704090L (sv) Forfarande for inhibering av proliferation av filamentos biomassa vid driften av ett aktivt-slam-system for avloppsvattenrening
EP0132609A3 (de) System für biologische Abwasserbehandlung
DE3061640D1 (en) Process for reabsorption and retention of phosphorus by activated biomass
GB2006743A (en) Aerobic/anaerobic sludge digestion process
EP0265027A3 (de) Verfahren zur Verarbeitung von flüssigem Düngemittel
IE830992L (en) Process for producing ribavirin
AU4028578A (en) Anaerobic/aerobic sludge digestion process
GB1535549A (en) Method of purifying waste water
ES8200850A1 (es) Procedimiento para hacer optima la actividad metabolica de microorganismos en el substrato de un sistema reactivo bio- logico
JPS5362357A (en) Method of treating waste water
ATE21117T1 (de) Gaerungsverfahren zur herstellung von alphaisopropylapfels|ure.
ES312586A1 (es) Procedimiento para la obtencion de una nueva lipasa estable de gran actividad.
JPS5212762A (en) Method of treating waste water
GB1511327A (en) Method for the treatment of sludges
JPS53145359A (en) Activated sludge disposal method
HUT48866A (en) Process for producing dl-trco-1-/p-nitrophenyl/-2-amino-1,3-propanediole-hydrochloride
JPS52111270A (en) Treating method and system for malodorous substance from kraft pulp fa ctory
JPS5320664A (en) Activated sludge treatment process
ENGLESSON et al. SYSTEM FOR TREATING SEWAGE WATER USING FLOCCULATION
IE41385B1 (en) Phosphate stripping of sewage
JPS5212203A (en) Method for the decolorization of waste lubricating oil
GB1501560A (en) Biological treatment of waste water
JPS5228466A (en) Process for treatment of concentrated sludge
KR890008038A (ko) 폐수의 생물학적 처리를 위한 방법

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
RZN Patent revoked